Net primary (photosynthetic) productivity (NPP) is:
A) the carbon fixed by the leaves of the plant and not secondary photosynthesizing organs.
B) the amount of biomass that goes into the harvested part of the plant.
C) carbon fixed plus the amount given off through respiration.
D) carbon fixed minus the amount given off through respiration.
Question 2
When returned to the soil after harvest, plant parts such as corn stalks and grape and apple leaves provide ________ material but very little N, P, K for subsequent crops.
A) inorganic B) soluble C) organic D) nutrient-rich
Red algae and primary plastid of the supergroup Archaeplastida.
A fixed action pattern as an example of innate behaviour.
Primary visual processing areas (blue) in (a) human (lateral and mesial views) and (b) chimpanzee.
Variable Gases: Carbon Dioxide
British Output and Productivity Growth, 1760–1913
Lobes of the brain, with primary receiving and integrating centers of the human cerebral cortex.